This website needs your current location to function properly. You have denied it explicitly. This needs to be cleared in the settings of your browser.
Why is the location needed?
This site calculates whether it is possible for your
body to naturally produce vitamin D from being in the sun this time of the
day at your current location.
If you do not want to share your location you can instead search for a city close to where you live.
Or use your current location.